Molybdenum concentrate dewatering method

Abstract

The invention discloses a molybdenum concentrate dewatering method. The molybdenum concentrate dewatering method comprises the following steps: S1, concentrating an ore pulp solution containing molybdenum concentrate to a set concentration by a concentration device; S2, filtering the ore pulp solution at the set concentration by a filtering device, separating out the filter cake and the filtrate,and enabling the filtrate to flow back to the concentration device, wherein the filtering device is used for filtering in the process of transporting the ore pulp solution; and S3, drying the filter cake separated by the filtering device by a drying device, wherein the drying device is used for drying in the process of transporting the filter cake. According to the molybdenum concentrate dewatering method disclosed by the embodiment of the invention, the integrated process and configuration of operations for filtering, drying and transporting the materials are realized, the intermediate transportation, reshipment and storage links are reduced, and the dewatering efficiency is greatly improved. In addition, the loss of fine fraction molybdenum concentrate due to filtration is reduced, and the molybdenum concentrate can be effectively recovered.

Description

technical field [0001] The invention relates to the technical field of non-ferrous metal mines, in particular to a method for dehydrating molybdenum concentrate. Background technique [0002] In the beneficiation plant of non-ferrous metal mines, molybdenum concentrate is used as a product in the separation process. After dehydration, it can be used as a raw material for subsequent production of molybdenum processing products such as ferromolybdenum and ammonium molybdate. Molybdenum concentrate is generally the product of flotation operations. In order to obtain qualified molybdenum concentrate, fine grinding is usually required, resulting in fine particle size of molybdenum concentrate products, which are not easy to dehydrate, and subsequent production has high water and oil content in molybdenum concentrate. , Usually the dehydration process is three stages. At present, the domestic molybdenum concentrate dehydration process is mostly a three-stage dehydration process, ...

AI Technical Summary

Problems solved by technology

Existing technology 3 adopts the three-stage dehydration of concentration + filtration + drying, and adopts the eliminated cylinder vacuum filter for filtration, which has high energy consumption and needs to be connected with the conveying equipment and the dryer. The dryer has large dust, serious losses and poor environment; prior art 4 With the two-stage dehydration process, the moisture content of the final molybdenum concentrate fails to meet the requirements for the subsequent production of ferromolybdenum products, and subsequent drying operations are required; existing technology 5 adopts two-stage dehydration operations of concentration and drying, and the concentration of the concentrated underflow entering the drying process is limited. , high moisture content, high drying energy consumption, high overall energy consumption

[0009] To sum up, a lot of research has been done on the dehydration process of molybdenum concentrate at home and abroad, including different filtration equipment and drying equipment tests and application research, but the dehydration of molybdenum concentrate requires high energy consumption, discontinuous operation, and high labor intensity. The working environment is poor, and the serious loss of molybdenum concentrate dehydration operation has not been fundamentally resolved

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